When do you change the timing belt on a 2005 Mercedes sl 500?

According to the Mercedes-Benz maintenance schedule, the timing belt on a 2005 Mercedes-Benz SL500 should be replaced every 10 years or 120,000 miles, whichever comes first. It's important to note that this interval may vary depending on driving conditions and climate, so it's always a good idea to consult your vehicle's owner's manual or a qualified mechanic for the most accurate information.